. >> craig chan tweeted to me "i'm in san francisco and it woke me up. s here in the 1989 loma prieta earthquake, thought this might be the big one." craig is on the phone with us now. craig, thank you so much for giving us some perspective from where you are. what made you think this was the big one? >> well, to me, i've lived here all my life in san francisco and when i feel anything that goes past ten seconds it really makes you think this might be the one, so you know, i just had to be prepared about it and you never know when it's going to happen. so you know, just very jarring to have something like that at 3:00 in the morning kind of wake you up. >> sure, sure. so it was the duration of this that surprised you? >> oh, absolutely. the duration and the feeling was kind of like very kind of slow and steady rolling th, then all a sudden it just stopped. i got out of my apartment and kind of walked down the hallway to check on a few people that lived in the building and make sure everything was okay, and there wasn't any major incidents, so we're very l